EP4347676A1 - Flüssige monofunktionelle 1,3-dioxolan copolymere - Google Patents
Flüssige monofunktionelle 1,3-dioxolan copolymereInfo
- Publication number
- EP4347676A1 EP4347676A1 EP21731414.5A EP21731414A EP4347676A1 EP 4347676 A1 EP4347676 A1 EP 4347676A1 EP 21731414 A EP21731414 A EP 21731414A EP 4347676 A1 EP4347676 A1 EP 4347676A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- chr
- dioxolane
- radical
- alkyl
- units
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G2/00—Addition polymers of aldehydes or cyclic oligomers thereof or of ketones; Addition copolymers thereof with less than 50 molar percent of other substances
- C08G2/18—Copolymerisation of aldehydes or ketones
- C08G2/24—Copolymerisation of aldehydes or ketones with acetals
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G65/00—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule
- C08G65/02—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule from cyclic ethers by opening of the heterocyclic ring
- C08G65/26—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule from cyclic ethers by opening of the heterocyclic ring from cyclic ethers and other compounds
- C08G65/2603—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule from cyclic ethers by opening of the heterocyclic ring from cyclic ethers and other compounds the other compounds containing oxygen
- C08G65/2606—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule from cyclic ethers by opening of the heterocyclic ring from cyclic ethers and other compounds the other compounds containing oxygen containing hydroxyl groups
- C08G65/2609—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule from cyclic ethers by opening of the heterocyclic ring from cyclic ethers and other compounds the other compounds containing oxygen containing hydroxyl groups containing aliphatic hydroxyl groups
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G2/00—Addition polymers of aldehydes or cyclic oligomers thereof or of ketones; Addition copolymers thereof with less than 50 molar percent of other substances
- C08G2/10—Polymerisation of cyclic oligomers of formaldehyde
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G4/00—Condensation polymers of aldehydes or ketones with polyalcohols; Addition polymers of heterocyclic oxygen compounds containing in the ring at least once the grouping —O—C—O—
Definitions
- the invention relates to monofunctional 1,3-dioxolane copolymers of 1,3-dioxolane and alkyl-substituted 1,3-dioxolane and a process for their production.
- polyacetals also called polyoxymethylenes (POM)
- POM polyoxymethylenes
- POM-H formaldehyde or trioxane
- POM-C 1,3-dioxolane
- Classic polyoxymethylenes are blocked by alkyl groups during synthesis. This leads to the stabilization of the polymers, but at the same time a functionalization or further reaction is prevented.
- methylene-bis(oxyethyl methacrylate) functions to initiate and chain terminate an acid-catalyzed ring-opening polymerization of 1,3-dioxolane, resulting in bis-functional ⁇ , ⁇ -methacrylate-terminated solid polydioxolane.
- WO14095971 A2 describes the polymerisation of trioxane and cyclic acetals starting from bifunctional polyols, the terminal OH groups of the polyacetal being subsequently blocked by means of glutaric anhydride to form carboxylic acid-terminated polymers. Solid products are obtained.
- the object of the present invention was therefore to obtain monofunctional polyacetals which are liquid over a wide temperature range and which can be produced from cyclic acetals.
- the invention relates to 1,3-dioxolane copolymers of the general formula I
- R 1 and R 2 are hydrogen radicals or Ci to Cis-alkyl radicals, with at least one radical R 1 or R 2 in the units [0-CH 2 -0-CHR 1 -CHR 2 -] yi and [0-CHR 1 -CHR 2 0-CH 2 -] y2 is a Ci to Ci 8 alkyl radical, with the proviso that yl+y2 has values from 3 * (xl+x2+yl+y2)/100 to 50 * (xl+x2 +yl+y2)/100 means,
- R 3 an unsubstituted or by halogen atoms
- R 4 is a hydrogen radical or Ci to Cis-alkyl radical.
- the 1,3-dioxolane copolymers of the general formula I are polyacetals.
- the copolymers are built up from 1,3-dioxolane and 1,3-dioxolane substituted in the 4-position and/or 5-position. They are liquid over a wide temperature range and are therefore very well suited for further processing.
- copolymers preferably have a glass transition between ⁇ 50° C. and ⁇ 70° C. and particularly preferably have no melting point.
- the copolymers start to decompose >100°C, in particular >110°C.
- the 1,3-dioxolane copolymers have the units [O-CH2-O-CH2- CH2- ]xi, [O-CH2-CH2O-CH2-] x2 , [0- CH2-0 - CHR1 -CHR 2 -] y i, [0-CHR 1 -CHR 2 0- CH 2 —] y 2, randomly or in blocks.
- xl+x2 preferably mean values from 20 to 1000, particularly preferably from 30 to 500, in particular from 50 to 300.
- alkyl radicals R 1 , R 2 and R 4 are linear and branched alkyl radicals, such as the methyl, ethyl, i-octyl, n-octyl radical, and cycloalkyl radicals, such as the cyclohexyl radical.
- R 1 , R 2 and R 4 are preferably independently hydrogen radicals or C 1 -C 6 -alkyl radicals, particularly preferably hydrogen radicals, methyl, ethyl, n-propyl or i-propyl radicals.
- R 1 or R 2 in the units [0-CH 2 -0-CHR 1 -CHR 2 -] yi and [0-CHR 1 -CHR 2 0-CH 2 -] y2 is a Ci- to Ci 8 -alkyl radical.
- R 1 preferably has 1 to 30, in particular 1 to 18, carbon atoms.
- R ⁇ which mean an aliphatically saturated hydrocarbon radical
- alkyl radicals such as methyl, ethyl, n-propyl, isopropyl, n-butyl, sec-butyl, isobutyl, tert.
- R ⁇ which are an aliphatically unsaturated hydrocarbon radical are alkenyl radicals and alkynyl radicals in which one or more non-adjacent —Cfk units can be replaced by —O— or —O—C(O)— groups.
- Preferred alkenyl radicals R 1 have 2 to 10 carbon atoms, such as vinyl, allyloxyethyl, propyl methacrylate, butyl methacrylate, methallyl, 1-propenyl, 5-hexenyl, ethynyl, butadienyl, hexadienyl, cyclopentenyl, cyclopentadienyl, cyclohexenyl, acrylate and methacrylate, vinyl being particularly preferred , allyl, acrylate, methacrylate, allyloxyethyl, propyl methacrylate and butyl methacrylate.
- Preferred alkenyl radicals R ⁇ are also polyethylene glycols having terminal alkenyl radicals.
- yl+y2 preferably means values from 5 * (xl+x2+yl+y2)/100 to 40 * (xl+x2+yl+y2)/100, particularly preferably values of 10 * (xl+x2+yl+y2) /100 to 30 * (xl+x2+yl+y2)/100, in particular values from 14 * (xl+x2+yl+y2)/100 to 25 * (xl+x2+yl+y2)/100.
- the 1,3-dioxolane copolymers preferably have a molecular weight Mw between 750-300,000, particularly preferably between 1500-125,000, very particularly preferably between 2200-63,000, in particular between 4000-25,000.
- the 1,3-dioxolane copolymers preferably have a dynamic viscosity at 25° C. between 50 mPas-500 Pas, particularly preferably between 500 mPas-200 Pas, in particular between 700 mPas-50 Pas.
- the 1,3-dioxolane copolymers of the above general formula I can be prepared in a simple manner and with short reaction times.
- 1,3-dioxolane copolymers of the above general formula (I) can also be mixed with proportions of copolymers in which the radical R 3 in the general formula (I) has been replaced by a hydrogen atom or the hydrogen atom at the other end of the 1st ,3-dioxolane copolymers is replaced by a radical R 3 .
- copolymers of the above general formula (I) are preferably mixed with at most 5 mol %, particularly preferably at most 1 mol %, in particular at most 0.1 mol % of copolymers in which the radical R 3 is replaced by a hydrogen atom or the hydrogen atom at the other end of the 1,3-dioxolane copolymer is replaced by a radical R 3 .
- the invention also relates to a process for preparing the 1,3-dioxolane copolymers of the general formula (I)
- R 1 and R 2 are hydrogen radicals or Ci to Cis-alkyl radicals, with at least one radical R 1 or R 2 in the units [0-CH 2 -0-CHR 1 -CHR 2 -] yi and [0-CHR 1 -CHR 2 0-CH 2 -] y2 is a Ci to Ci 8 alkyl radical, with the proviso that yl+y2 has values from 3 * (xl+x2+yl+y2)/100 to 50 * (xl+x2 +yl+y2)/100 means,
- R 3 an unsubstituted or by halogen atoms
- R 4 is a hydrogen radical or Ci to Cis-alkyl radical in which 1,3-dioxolane with alkyl-substituted 1,3-dioxolane of the general formula II is copolymerized in the presence of a Lewis or Bronsted acid and an alcohol of the general formula R 3 OH, the molar ratio of Lewis or Bronsted acid to alcohol of the general formula R 3 OH being less than 1.
- the process is a ring-opening polymerization of the dioxolane monomers by cationically induced catalysis.
- the catalyst is Lewis or Bronsted acid.
- the alcohol R 3 0H has the function of an initiator.
- this process means that subsequent functionalization of a ,w-hydroxy-terminated polymer can be dispensed with.
- a ,w-hydroxy-terminated polymer preferably at least 10 mol%, particularly preferably at least 20 mol%, in particular at least 30 mol%, of alkyl-substituted 1,3-dioxolane of the general formula II, based on the total amount of 1,3-dioxolane and alkyl-substituted 1, 3-dioxolane of the general formula II used.
- acids are Lewis acids such as BF 3 , A1C1 3 , TiCl 3 , SnCl 4 S0 3 PC1 5 , P0C1 3 , FeCl 3 and its hydrates and ZnCl 2 ; Bronsted acids such as boric, tetrafluoroboric, nitric acid, nitrous acid, phosphoric acid, phosphorous acid, hypophosphorous acid, sulfuric acid, sulphurous acid, peroxosulfuric acid, hydrochloric acid, hydrofluoric acid, hydroiodic acid, hydrobromic acid, perchloric acid, hexafluorophosphoric acid, aluminum chloride , zinc chloride, benzenesulfonic, p-toluenesulfonic, methanesulfonic, trifluoromethanesulfonic and carboxylic acids such as chloroacetic, trichloroacetic, acetic, acrylic, benzoic,
- Bronsted acids such as boric
- Trifluoromethanesulfonic acid is particularly preferred.
- the process takes place in the absence of water. This suppresses the formation of copolymers in which the radical R 3 in the general formula (I) is replaced by a hydrogen atom is replaced.
- aprotic solvents preference is given to solvents or solvent mixtures with a boiling point or boiling range of up to 120° C. at 0.1 MPa.
- solvents or solvent mixtures with a boiling point or boiling range of up to 120° C. at 0.1 MPa.
- solvents are ethers such as dioxane, tetrahydrofuran, diethyl ether, methyl tert-butyl ether, diisopropyl ether, diethylene glycol dimethyl ether; chlorinated hydrocarbons such as dichloromethane, trichloromethane, tetrachloromethane, 1,2-dichloroethane, trichlorethylene; Hydrocarbons such as pentane, n-hexane, hexane isomer mixtures, heptane, octane, benzine, petroleum ether, benzene, toluene, xylenes; Siloxanes, in particular linear dimethylpol
- dimethylsiloxane units such as hexamethyldisiloxane, octamethyltrisiloxane, octamethylcyclotetrasiloxane and decamethylcyclopentasiloxane;
- ketones such as acetone, methyl ethyl ketone, diisopropyl ketone, methyl isobutyl ketone (MIBK); esters such as ethyl acetate, butyl acetate, propyl propionate, ethyl butyrate, ethyl isobutyrate; Carbon disulfide and nitrobenzene, or mixtures of these solvents.
- ketones such as acetone, methyl ethyl ketone, diisopropyl ketone, methyl isobutyl ketone (MIBK)
- esters such as ethyl acetate, butyl acetate, propyl propionate, ethyl butyrate, ethyl isobutyrate
- Carbon disulfide and nitrobenzene or mixtures of these solvents.
- reaction does not mean that all reaction components have to be dissolved in it.
- the reaction can also be carried out in a suspension or emulsion of one or more reactants.
- the reaction can also be carried out in a solvent mixture with a miscibility gap be, wherein in each of the mixed phases in each case at least one reactant is soluble.
- Trifluoromethanesulfonic acid and the initiator used methylene chloride being used as the preferred solvent.
- the amount of catalyst and initiator used determines the achievable molecular weight of the 1,3-dioxolane copolymer of general formula I.
- the alcohol R 3 OH used as initiator regulates the desired chain length of the 1,3-dioxolane copolymers of the general formula (I).
- the Lewis or Bronsted acid is used in catalytic amounts to activate the initiator.
- the molar ratio of Lewis or Bronsted acid to alcohol of the general formula R 3 OH is preferably between 0.5 and 0.001, in particular between 0.1 and 0.01.
- mol ppm 50 to 10,000 mol ppm, particularly preferably 100 to 5,000 mol ppm, in particular 200 to 4,000 mol ppm Lewis or Bronsted acid are used per mol of the sum of 1,3-dioxolane and alkyl-substituted 1,3-dioxolane of the general formula II .
- the Lewis or Bronsted acid is mixed with the alcohol of general formula R 3 OH before the mixture is added to the 1,3-dioxolane and alkyl-substituted 1,3-dioxolane of general formula II.
- the process is preferably carried out at a temperature between 10 and 60°C, particularly preferably between 15 and 40°C, in particular between 21 and 30°C.
- a reaction temperature of 23° C. is very particularly preferred.
- the reaction is preferably worked up by deactivating the catalyst using a suitable base, washing with a hydrocarbon such as heptane and drying under reduced pressure.
- Pyridine, triethylamine or aqueous sodium hydroxide solution are preferably suitable as the base.
- the polyacetals can be used as emulsifiers or as starting materials for the preparation of functional silicone oils or similar purposes.
- the measurement is carried out in solution in CDC13 on a Bruker Avance 500 or Ascend 500 (500 MHz for 1H spectrum). All measurements are referenced against TMS as an external standard.
- the relative proportions of the monomer units in the polymer are determined by integrating the respective sets of signals.
- the chain length and the molar mass of the polymer can be determined by integration of the end group signals.
- the measurement is carried out against a polystyrene standard, in THF, at 35° C., flow rate 0.3 ml/min and detection with RID (refractive index detector) on an Agilent PLgel MiniMIX-C Guard column with an injection volume of 20 m ⁇ .
- Rheometer for determining the dynamic viscosity The measurement is carried out on an MCR 320 rotational viscometer from Anton Paar at 25.degree. The graphic evaluation is carried out by plotting the viscosity against the shear stress.
- the measurements were carried out on a DSC-1 device from Mettler Toledo in a temperature range from -150 °C to 150 °C in two runs with a heating or cooling rate of 10 K, the second run for determining the melting point and the glass transition temperature was used.
- onset The onset of decomposition (onset) was determined using a TGA-2 device from Mettler Toledo, the sample being heated at a heating rate of 10 K/min under an oxygen atmosphere.
- Example 1 The onset of decomposition (onset) was determined using a TGA-2 device from Mettler Toledo, the sample being heated at a heating rate of 10 K/min under an oxygen atmosphere.
- Example 1 The onset of decomposition (onset) was determined using a TGA-2 device from Mettler Toledo, the sample being heated at a heating rate of 10 K/min under an oxygen atmosphere.
- Trifluoromethanesulfonic acid are combined and stirred at room temperature for 1 hour.
- 1.35 ml of the catalyst solution previously prepared are placed in a flask and heated to 23.degree.
- 10.12 g (96 mmol) of 4-ethyl-1,3-dioxolane (EDX) and 6.75 ml (96 mmol) of 1,3-dioxolane (DXL) are added and stirred.
- Example 2 5.4 ml of the catalyst solution prepared in Example 1 are placed in a flask and heated to 23.degree. Then 10.12 g (96 mmol) of 4-ethyl-1,3-dioxolane (EDX) and 6.75 ml (96 mmol) of 1,3-dioxolane (DXL) are added and stirred.
- EDX 4-ethyl-1,3-dioxolane
- DXL 1,3-dioxolane
- Preparation of the catalyst solution 10 ml of dry dichloromethane, 5.15 g of hydroxypropyl methacrylate and 152 mg of trifluoromethanesulfonic acid are combined and stirred at room temperature for 1 hour. 4.05 ml of the catalyst solution previously prepared are placed in a flask and heated to 23.degree. Then 15.18 g (144 mmol) of 4-ethyl-1,3-dioxolane (EDX) and 10.12 ml (144 mmol) of 1,3-dioxolane (DXL) are added and stirred.
- EDX 4-ethyl-1,3-dioxolane
- DXL 1,3-dioxolane
- Trifluoromethanesulfonic acid are combined and stirred at room temperature for 1 hour.
- 1.35 ml of the catalyst solution previously prepared are placed in a flask and heated to 23.degree.
- 10.12 g (96 mmol) of 4-ethyl-1,3-dioxolane (EDX) and 6.75 ml (96 mmol) of 1,3-dioxolane (DXL) are added and stirred.
- Preparation of the catalyst solution 10 ml of dry dichloromethane, 1.05 ml of ethanol and 76 ml of trifluoromethanesulfonic acid are combined and stirred at room temperature for 1 hour. 1.35 mL of the previously prepared catalyst solution is placed in a flask and heated to 23°C tempered. Then 10.12 g (96 mmol) of 4-ethyl-1,3-dioxolane (EDX) and 6.75 ml (96 mmol) of 1,3-dioxolane (DXL) are added and stirred.
- EDX 4-ethyl-1,3-dioxolane
- DXL 1,3-dioxolane
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Polyoxymethylene Polymers And Polymers With Carbon-To-Carbon Bonds (AREA)
Abstract
Description
Claims
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PL21731414.5T PL4347676T3 (pl) | 2021-05-31 | 2021-05-31 | Płynne monofunkcyjne kopolimery 1,3-dioksolanu |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/EP2021/064570 WO2022253406A1 (de) | 2021-05-31 | 2021-05-31 | Flüssige monofunktionelle 1,3-dioxolan copolymere |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP4347676A1 true EP4347676A1 (de) | 2024-04-10 |
| EP4347676B1 EP4347676B1 (de) | 2025-05-28 |
Family
ID=76375030
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP21731414.5A Active EP4347676B1 (de) | 2021-05-31 | 2021-05-31 | Flüssige monofunktionelle 1,3-dioxolan copolymere |
Country Status (8)
| Country | Link |
|---|---|
| US (1) | US20240254271A1 (de) |
| EP (1) | EP4347676B1 (de) |
| JP (1) | JP7771227B2 (de) |
| KR (1) | KR20240010499A (de) |
| CN (1) | CN117355550A (de) |
| ES (1) | ES3040182T3 (de) |
| PL (1) | PL4347676T3 (de) |
| WO (1) | WO2022253406A1 (de) |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0859817A (ja) * | 1994-08-17 | 1996-03-05 | Nippon Shokubai Co Ltd | ポリジオキソラン及びその製造方法 |
| JP3860049B2 (ja) | 2002-02-26 | 2006-12-20 | ポリプラスチックス株式会社 | ポリエーテル系共重合体の製造法 |
| WO2014095971A2 (de) | 2012-12-21 | 2014-06-26 | Bayer Materialscience Ag | Funktionalisierte polyoxymethylen-block-copolymere |
-
2021
- 2021-05-31 CN CN202180098442.2A patent/CN117355550A/zh active Pending
- 2021-05-31 EP EP21731414.5A patent/EP4347676B1/de active Active
- 2021-05-31 WO PCT/EP2021/064570 patent/WO2022253406A1/de not_active Ceased
- 2021-05-31 KR KR1020237044028A patent/KR20240010499A/ko active Pending
- 2021-05-31 ES ES21731414T patent/ES3040182T3/es active Active
- 2021-05-31 PL PL21731414.5T patent/PL4347676T3/pl unknown
- 2021-05-31 US US18/565,260 patent/US20240254271A1/en active Pending
- 2021-05-31 JP JP2023573587A patent/JP7771227B2/ja active Active
Also Published As
| Publication number | Publication date |
|---|---|
| EP4347676B1 (de) | 2025-05-28 |
| JP7771227B2 (ja) | 2025-11-17 |
| JP2024520554A (ja) | 2024-05-24 |
| WO2022253406A1 (de) | 2022-12-08 |
| US20240254271A1 (en) | 2024-08-01 |
| ES3040182T3 (en) | 2025-10-29 |
| KR20240010499A (ko) | 2024-01-23 |
| CN117355550A (zh) | 2024-01-05 |
| PL4347676T3 (pl) | 2025-09-22 |
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